code: def test_delete(self):
      instance = self.model_class.objects.get(
          username=self.obj1.username
      )
      instance.delete()
  
      delete_flag = False
      try:
          self.model_class.objects.get(username=self.obj1.username)
      except User.DoesNotExist:
          delete_flag = True
  
      self.assertTrue(delete_flag)
  
file_path: modelchimp/modelchimp/tests/models/test_user_model.py
imports: from modelchimp.tests import BaseTest
  from modelchimp.factories.factory_user import UserFactory
  from modelchimp.models.user import User
label_desc: Use image node_id 5 for calling the UserModelTest obj's underlying member method code with example usage: obj.test_delete() without return types